public class student {
    public  String name;
    public  int age;
    public  String sex;
    public  int num;
    public String clas;
    public  void student(){
        System.out.println("在学习编程：姓名为"+name+",年龄为"+age+",性别为"+sex+",学号为"+num+",是"+clas);
    }

}
